When George was a little boy in primary school, he often _______ to school on foot.
A.goes
B.went
C.go
D.will go
出自:国家开放大学英语语法

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块